The green box means dat ur friend is online and available for chat
Your mutual friend on facebook is a one of your friends other friends. If you have 2 mutual friends, it means two of your friends are friends with this one person whom you are not
It means you can chat to people on Facebook who are your friends and are online when you are.
it means friends in common or you share the same friends :) Example.....You and your friend danny (just go with it) is both friends with rebecca on facebook . rebecca is a mutral friend of danny:)
It means that you can see their posts but you are not friends with them.
BFF means Best Friends Forever
green means available. clear means idle.
On facebook mutual friends are people who have some of the same friends as you.
It means that they are currently online and active. If it is a crescent moon that means they are still online but have been inactive for 5 minutes or more.
when you sign in on facebook, there should be a button with a little head with a dot beside it at the bottom right hand corner of the screen. If its greeen that means you are online. Once online there should be a little rectangular thing beside it that says "online friends ___" (___= # of people on) If the dot is red, click on the button and say go online.
It means they have customized their privacy settings so you can't see anything they do on facebook, but you are still one of their facebook friends.
The second number means you have 2 friends, and the first means what it is showing. It means you have 2 friends, but is only showing one.